//
// Created by qiang on 2020/3/27.
//

#include "CircleClass.h"


void testClass() {
    printf("test!!");
}

CircleClass::CircleClass() {

    this->r = 5.0f;

}

CircleClass::CircleClass(double R) {

    this->r = R;

}

double CircleClass::area() {
    return 3.14 * r * r;
}

